
Unbalanced and Balanced Forces/Net Force
Presentation
•
Science
•
6th Grade
•
Practice Problem
•
Easy
Standards-aligned
Alesia Adams
Used 308+ times
FREE Resource
6 Slides • 10 Questions
1
Review
Some text here about the topic of discussion.
2
SC.6.P.13.3
Some text here about the topic of discussion
3
change in motion.
unbalanced force can be in opposite directions or the same direction
When forces are unbalanced
motion is constant
there is no motion
When forces are balanced
Balanced and Unbalanced Forces
balanced forces are equal. unbalanced forces are not equal
100N
75N
75N
75N
4
Multiple Choice
Which of these is evidence that an unbalanced force is acting on an object?
The mass of the object is changing
The object remains at rest.
The motion of the object is changing
The object continues moving in a straight line at constant velocity.
5
When forces are unbalanced, the net force > 0
When forces are balanced the net forces = 0
Net force is the SUM of all forces acting on an object
balanced forces are equal. unbalanced forces are not equal
100N
75N
75N
75N
6
the Newtons that are going in the SAME DIRECTION
Add
the Newtons that are going in the OPPOSITE DIRECTION
Substract
How to calculate Net Force
Remember:
Determine the direction and magnitude of each individual force first
when subtracting, subtract the smaller number from the larger number
7
LET'S DO SOME PRACTICE
8
Open Ended
What is the magnitude AND direction of each individual force?
9
Open Ended
Are these forces acting in the same direction or opposite direction?
10
Open Ended
To find the net force, will we add or subtract?
11
Multiple Select
What is the net force (direction and magnitude) on this object?
4N
Left
Right
0N
No direction since the forces are balanced
12
Multiple Choice
What is the net force (direction and magnitude) acting on the box?
30N, right
30N, left
5N, left
25N, left
13
Multiple Choice
What is the net force (direction and magnitude) acting on the box?
100N, left
90N, right
100N, right
140N, right
14
Multiple Choice
Looking at all four boxes, which box is experiencing a net force of 0N?
A
B
C
D
15
Multiple Choice
Looking at the boxes, which box is experiencing a net force of 3N, down?
A
B
C
D
16
Multiple Choice
The following picture shows forces acting on a sneaker. Suppose that the sneaker is moving toward the spring scale.
Based on evidence in the picture, in which direction is the sum of all the forces (the net force) acting?
The net force is acting in an upward direction.
The net force is acting in a downward direction.
The net force is acting to the left.
The net force is acting to the right.
Review
Some text here about the topic of discussion.
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